NIST researchers placed a common type of Christmas tree in a sealed chamber for 17 days to monitor and measure the chemicals it emits. These chemicals called volatile organic compounds (VOCs) give that pine smell and can react with ozone to form byproducts. They found low amounts of these chemicals, which may be a potential … Read more
A child watching a robot provide accurate or inaccurate information. Credit: SUTD In this digital age, children are exposed to overwhelming amounts of information online, some of it unverified and increasingly generated by non-human sources, such as AI-driven language models. As children grow older, the ability to assess a source’s reliability is an important skill … Read more
Image of Jupiter taken by NASA’s Juno spacecraft in February 2022. The dark spot is the shadow of the moon Ganymede. The colorful patterns are formed by clouds at different altitudes and made up mainly of ammonia ice, ammonium hydrosulfide and water. Credit: NASA/JPL-Caltech/SwRI/MSSS. Image processing by Thomas Thomopoulos For the first time, an instrument … Read more
A view of the still steaming fissure from above, in Grindavik on Iceland’s Reykjanes Peninsula, Thursday, Dec. 21, 2023. Credit: AP Photo/Marco Di Marco Residents of the small Icelandic fishing village near where a volcano erupted were told Friday they could return home. The regional police chief said residents, business owners and employees could enter … Read more
This NASA Hubble Space Telescope image features a bright spiral galaxy known as MCG-01-24-014, which is located about 275 million light-years from Earth. Credit: ESA/Hubble & NASA, C. Kilpatrick This whirling image features a bright spiral galaxy known as MCG-01-24-014, which is located about 275 million light-years from Earth. In addition to being a well-defined … Read more
Schematic illustration of unimolecular self-assembled CyOA NPs enhanced phototoxicity to CSCs by implementing oxygen-economical PDT. Credit: Research Cancer stem cells (CSCs) are a rare population of cells in tumor tissues that drive tumorigenesis, recurrence, and metastasis. Therefore, the development of anti-tumor therapies that can eliminate CSCs has significant implications for cancer treatment. Photodynamic therapy (PDT) … Read more
China’s air pollution worsened in 2023, the first time it has done so in a decade, a study released on Friday said. “2023 is the first year that China’s national average PM2.5 level has increased year-on-year since the beginning of China’s ‘war on pollution’ in 2013,” a study by independent research organization the Centre for … Read more
Eam Orn (L) kneels in a Cambodian forest, pressing his hands together before an offering, and prays for the return of his land. Eam Orn kneels in a forest in northwest Cambodia, pressing his hands together before an offering of bananas studded with smoking incense, and prays for the return of his land. He is … Read more
Credit: Unsplash/CC0 Public Domain Earlier this month, a Senate inquiry recommended Australian students get specific lessons in how to behave. Following concerns about increasing levels of disruptive behavior in Australian schools at both primary and high school levels, the inquiry wants to see “the explicit teaching of behavior [as a] vital component of the Australian … Read more
Credit: SpaceX NASA astronauts Nicole Mann and Doug “Wheels” Wheelock participated in a recent test of a sub-scale mockup elevator for SpaceX’s Starship human landing system that will be used for NASA’s Artemis III and IV missions to the moon. The Starship human landing system will carry two astronauts from the Orion spacecraft in lunar … Read more
